Phylogenetic analysis of nucleotide sequences of chloroplast rDNA internal transcribed spacer (cpITS) regions (cpITS2-4) of 14 species of liverworts, 4 species of hornworts, 20 species of mosses, 7 species of lycopods and 2 species of algae was carried out. Phylogenetic trees constructed by maximum parsimony, maximum likelihood and neighbour-joining methods indicated that bryophytes are not monophyletic. The cpITS data suggest that the hepatic lineage branches most deeply in the land plant topology and that mosses are monophyletic, forming the sister group of lycopods and hornworts. Within the mosses, a conspicuous deletion with distinct phylogenetic distribution was observed in the cpITS3 region. This deletion is absent in other land plants, including the enigmatic genus Takakia, and marks Takakia as an evolutionary lineage distinct from mosses. ÐåçþìåÏðîâåäåí ôèëîãåíåòè÷åñêèé àíàëèç íóêëåîòèäíûõ ïîñëåäîâàòåëüíîñòåé ñïåéñåðîâ õëîðîïëàñòíîé ðÄÍÊ (cpITS2-4) ó 14 âèäîâ ïå÷åíî÷íèêîâ, 4 âèäîâ àíòîöåðîòîâûõ, 20 âèäîâ ìõîâ, 7 âèäîâ ïëàóíîâèäíûõ è 2 âèäîâ õàðîâûõ âîäîðîñëåé. Ñîãëàñíî òîïîëîãèè ôèëîãåíåòè÷åñêèõ äåðåâüåâ, ðåêîíñòðóèðîâàííûõ ìåòîäàìè ìàêñèìàëüíîãî ïðàâäî-ïîäîáèÿ, áëèaeàéøåãî ñâÿçûâàíèÿ è ìàêñèìàëüíîé ýêîíîìèè, ìîõîîáðàçíûå íå ìîíîôèëåòè÷íû. Íà êëàäîãðàììàõ ñðåäè íàçåìíûõ ðàñòåíèé ïåðâûìè îòäåëÿþòñÿ âåòâè, âåäóùèå ê ïå÷åíî÷íèêàì. Ìõè ïðåäñòàþò êàê ìîíîôèëåòè÷åñêàÿ ãðóïïà, ñåñòðèíñêàÿ ê êëàäå, îáúåäèíÿþùåé ïëàóíîâèäíûå è àíòîöåðîòîâûå.  íóêëåîòèäíîé ïîñëåäî-âàòåëüíîñòè cpITS3 ó ìõîâ îáíàðóaeåíà ïðîòÿaeåííàÿ äåëåöèÿ, îòñóòñòâóþùàÿ ó îñòàëüíûõ íàçåìíûõ ðàñòåíèé, âêëþ÷àÿ Takakia.
We determined the sequence of the region of the chloroplast DNA inverted repeat spanning from the 3P-terminus of the 23S rRNA gene to the 5P-terminus of the tRNA erg (ACG) gene (about 700 bp) from 25 bryophytes and from the charophycean alga Chara australis. Phylogenetic analysis of these sequences using the neighbor-joining method suggests an early dichotomy of bryophytes and their paraphyly relative to the tracheophyte lineage. A monophyly of liverworts (Marchantiidae plus Jungermanniidae), a deep divergence of Metzgeriales among Jungermanniidae and a close affinity of the two subclasses of mosses, Sphagnidae and Andreaeidae, are evident. The branching pattern observed is consistent with the phylogenetic distribution of several prominent indels observed in the alignment.z 1998 Federation of European Biochemical Societies.
throughout the development of scrolls (unrolled young leaves) Seasonal distribution of total lipids, of total and individual to vegetatively mature leaves. The maximum concentration of phospholipids as well as of one betaine lipid, diacylglyceryl-DGTS for all the examined species was found in scrolls. N,N,N-trimethylhomoserine (DGTS), found in the leaves of Dryopteris carthusiana, Dryopteris filix-mas, MatteucciaDGTS then decreased to its minimum level or entirely disapstruthiopteris and Pteridium aquilinum was studied. Using peared to reappear at later stages of leaf development. This may indicate a specific role of DGTS in the plant membrane. thin-layer chromatography it was shown that lipid composition was different in these species and changed substantially
The distribution pattern of total lipids, glyco- and phospholipids, and one betaine lipid (DGTS) in the fronds ofthe ferns Dryopteris filix-mas and Matteuccia struthiopteris was studied. The lipid composition of the embryo leaflets forming a bud, or "treble clef", and that of fully opened leaves changed throughout the growth season. The maximum amount of DGTS in clefs and mature leaves was detected at the beginning of the season. By midsummer, the DGTS content decreased, dropping to zero in the fully opened leaves, and then increased again. The amount of DGTS in the clefs collected in October versus those collected in May was somewhat higher in the case of Dryopteris filix-mas and almost twofold lower in the case of Matteuccia struthiopteris. The ratio between polar lipids contained in the clefs and mature leaves throughout the growth season was determined.
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